Kelly Stafford wrote on Instagram that she found out she was pregnant last December and "enjoyed getting to surprise Matthew on Christmas morning with some news he was for sure not expecting."

Stafford, who turned 30 in February, is entering the first year of a five-year, $135 million extension he signed with the team last fall. He's coming off a season in which he threw for 4,446 yards with 29 touchdowns, but took a career-high 47 sacks and had 17 turnovers.